Same as Jack Off and Jerk Off.
"I am gonna wack off with coconut shampoo... then it will smell like coconut."
by Aeon_King April 11, 2006
to jack off until one cums.
I had to wack off after i watched baywatch.
by Brandi February 06, 2003
to masturbate (male)

a phrase that didn't exist until someone mixed the phrases "jack off" and "wank off"

not to be confused with "wacking"
I saw my brother wack off to porn when I snuck in his room.
by selenagomez123 September 07, 2013

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